CN102714635A

CN102714635A - Quality of service (QOS) over network-to-network interfaces for IP interconnection of communication services

Info

Publication number: CN102714635A
Application number: CN201080049891XA
Authority: CN
Inventors: 芮杰希·巴瑞杰
Original assignee: ZTE Corp
Current assignee: ZTE Corp
Priority date: 2009-09-04
Filing date: 2010-09-06
Publication date: 2012-10-03
Also published as: KR20120058609A; US20120218924A1; JP2013504271A; WO2011029083A3; WO2011029083A2

Abstract

Techniques, apparatuses, and systems can include mechanisms to provide end-to-end quality-of-service.

Description

The service quality on network to network interface (QOS) that is used for the IP interconnection of communication service

Priority request and related application

The interests and the priority of two U.S. Provisional Applications of submitting in the U.S. below this patent documentation requirements: the title that submitted on September 4th, 2009 (1) is the U.S. Provisional Patent Application number 61/240 of " QOS ACROSS NETWORK-TO-NETWORK INTERFACES FOR IP INTERCONNECTION OF SERVICES IN WIRELESS COMMUNICATIONS "; 187; (2) title of submitting on September 11st, 2009 be the U.S. Provisional Patent Application number 61/241,618 of " QOS ACROSS NETWORK-TO-NETWORK INTERFACES FOR IP INTERCONNECTION OF SERVICES IN WIRELESS COMMUNICATIONS business ".

The whole open part that is merged in by reference of the application of more than mentioning as presents.

Background

Presents relates to the communication technology and system, comprises the technology and the system that are used for radio communication and wire communication.

In the data packet switched network that packet is transmitted through wired or wireless communication link or network, service quality (QoS) is implemented reserves transmission that the communication resource and control data divide into groups in transmitting packet, to reach the performance of certain level.Can for example transmission bit rate, transmission delay, grouped data shake, the probability of loss of data, bit error rate be measured the level of QoS performance through one or more parameters.Some data, services possibly tolerate and postpone to lose with packet package, and some data, services such as ip voice, interactive data service, video and multi-medium data service maybe be to postponing and packet loss is extremely sensitive and the therefore high-caliber QoS of needs.

Can realize QoS mechanism, it is used for controlling and manage grouping based on packet switching through wired or wireless communication link or network and transmits to satisfy some qos requirement.Wireless communication system can comprise that the network of one or more base stations is so that for example mobile device, cell phone, wireless Internet card, travelling carriage (MS), subscriber equipment (UE), access terminal (AT) or subscriber station (SS) communicate with one or more wireless devices.Each base station can be transmitted into wireless device with the radio signal of carrying data such as speech data and other data contents.The base station can be known as access point (AP) or Access Network (AN) or can be included as the part of Access Network.In addition, wireless communication system through one or more core networks with communicate with one another or communicate by letter with wired communication system.Wireless device can use one or more different wireless technologies to be used for communication.The example of multiple wireless technology comprises that code division multiple access (CDMA) is like CDMA2000 1x, HRPD (HRPD), technology, Long Term Evolution (LTE), OFDM (OFDM) and global intercommunication microwave access (WiMAX) based on global system for mobile communications (GSM).In some implementations, wireless communication system can comprise a plurality of networks that use different wireless technologies.

In multiple communications applications, can provide based on the packet-switched data communication service in the two or more communication networks by various network telecommunications company or operator's operation.In this application, realize that through the network-to-network interconnection QoS mechanism is desirable with the aspiration level that reaches data transfer performance.

General introduction

Presents has been described and has been used for technology and other aspects wireless and wire communication.

On the one hand, the technology that is used for the communication between wireless and/or wired communication system can comprise and be used for going up the realization end-to-end QoS so that the method and apparatus and the system of IP multimedia service (IMS) to be provided at network to network interface (NNI).

In another aspect, provide to be used for through different communication networks the method for service quality (QoS) being provided at block data communication, said method comprises:

The QoS service managerZ-HU is provided respectively in different communication networks, manages qos signaling to be interconnected in the different communication networks through the network-to-network that connects different communication networks;

The QoS service managerZ-HU of different communication networks of two connections of operation communicates with one another, so that each QoS service managerZ-HU can obtain to the QoS information of the service-level agreement (SLA) of the data communication services supported by different communication networks with about the information of the network service resource in corresponding communication network;

In each communication network, provide borde gateway to connect with the communication network that is connected with another; Be used for signaling and data communication between the communication network of two connections, have designated respectively two borde gateways that are connected with said two other communication networks if the communication network that wherein is connected with two other communication networks exists;

Operate each QoS service managerZ-HU with the one or more borde gateway transmission in corresponding communication network about information to the qos policy of said data communication services, comprise the said QoS information of said SLA and about the information of the network service resource of said data communication services; And

Operate each borde gateway and implement entity as the qos policy of implementing said qos policy.

In specification, accompanying drawing and claim, described in detail aspect these and other aspects and implementation thereof.

The accompanying drawing summary

Fig. 1 shows wireless RF (radio frequency) network relevant with system with described QoS technology and the instance of radio transceiver with Fig. 2.

Fig. 3 shows high-caliber IP exchange (IPX) framework model.

Fig. 4 shows the instance of the IPX framework of the TISPAN (telecommunications and internet converged services and senior networking protocol) according to Europe.

Fig. 5 shows public switched telephone network (PSTN) and the instance of interconnection is gone up by Public Land Mobile Network (PLMN) telecommunications company through network to network interface (NNI).

Fig. 6 shows the instance that inserts the IPX framework that guarantees end-to-end (E2E) QoS on NNI for telecommunications company.

Fig. 7 shows the instance that inserts the IPX framework that is provided at the E2E QoS on the NNI for many equipment, and wherein the user orders family broadband and advanced video service from the supplier of family A.

Fig. 8 shows the instance of the scalable IPX framework that is proposed that guarantees E2E QoS.

Fig. 9 shows the instance of the E2E QoS assurance call flow of the IPX framework among Fig. 8.

Figure 10 and Figure 11 show the exemplary implementation of the call flow among Fig. 9.

Describe in detail

The for example packet-based network of communication network can be connected with different wireless and wired communication systems.This communication system can provide different service level and service quality (QoS) to the user.Network such as wirelessly can end-to-end (E2E) be provided QoS for various the connection with wired communication system and packet-based network.

How two networks of network to network interface (NNI) definition interconnect and exchange message.QoS in the NNI interconnection is to the optimum network utilization and to transmit high-quality service economically very important.Traditionally, some telecommunications companies solve the problem of QoS through the excessive supply of their network.Yet; Because the Time Division Multiplexing business of ever-increasing amount is moved to the network of internet protocol-based (IP); And because the ever-increasing absorption of IP-based service such as multimedia service, making network form required size possibly be impossible or difficult to satisfy the highest business need effectively.Therefore, in most standard development institution (SDO), the QoS on NNI is an important research project.

In various industry forum, arguing problem energetically about the QoS on the NNI.GSM association (GSMA) uses its GPRS roaming exchange (GRX) model to define through comprising that the QoS ability expands IP exchange (IPX) interconnected model of GRX.Two other SDO---third generation partner program (3GPP) and ETSI TISPAN (telecommunications and internet converged services and senior networking protocol) have set about solving the method for QoS problem.The QoS characteristic that IPX use to strengthen and in GRX in the various elements and performance, quality and the fail safe of principle of commercial use to guarantee IP-based data, services.IPX will add GRX to the support of Differentiated Services (DiffServ) through using Differentiated Services (DiffServ) technology, in this technology, distinguish data, services based on packet to the classification of various service types.In IPX, use the service type (CoS) of each grouping to come to transmit corresponding packet allocation priority and Internet resources with respect to other packet.IPX uses the DiffServ code point (DSCP) in the IP of packet head to define COS (TOS) field, handles different packets with the CoS classification criterion precedence information that allows to divide into groups based on different pieces of information differently.Yet the limitation that causes owing to the static configuration of the edge router in DiffServ possibly cause the under-supply or excessive supply of Internet resources.

Can be implemented in technology and the system of describing in the presents that be used for the mode that the E2E QoS that for example provides the IPX differentiated service guarantees in the QoS of heterogeneous networks mechanism.Implementation can be provided for service implementation level protocol (SLA) dynamically with the E2E solution of multiple strand chain and E2E QoS is provided assurance.Implementation can be based on NNI signaling between the territory of the exchange of the policing rule in Policy Decision Point (PDP) entity that is used in provider domain.In some implementations, can between PDP and borde gateway, realize QoS rule signaling in the territory in the edge in separately territory, be used for strategy and implement.Can be used to discern different classes of business based on the DiffServ mark on the main line of classification and be used to implement the specific strategy of classification.Some implementation can comprise the mechanism that is used between wireless and/or wired communication system, providing QoS.Also can be with making the end-to-end QoS on network to network interface (NNI) can provide the mode of IP multimedia service (IMS) to realize present technique and system.In presents, provide the instance of framework to handle Differentiated Services and guarantee the E2E QoS on NNI with coordinated mode with reliable mode to allow service supplier and IPX supplier.

Transmitting with the machine-processed technology data relevant with system of the QoS in heterogeneous networks can be via wireless communication link such as wireless RF link or wire communication link such as cable or optical fiber.Can in various configurations, realize wireless RF link based on various wireless technologys.Fig. 1 and Fig. 2 show the instance of wireless RF network and radio transceiver.

Fig. 1 shows the instance that is used for providing to wireless device or user the wireless communication system that radio inserts.In this example, communication system can comprise one or more base stations (BS) 105,107 and one or more wireless device 110.Base station 105,107 can will be called as down link (DL) signal on forward link (FL) signal is transmitted into one or more wireless devices 110.Wireless device 110 can will be called as up link (UL) signal on reverse link (RL) signal is transmitted into one or more base stations 105,107.Wireless communication system can comprise that one or more core networks 125,127 are to control one or more base stations 105,107.The instance of wireless communication system that can realize present technique and system is except also comprising other based on code division multiple access (CDMA) like CDMA2000 1x, HRPD (HRPD), the wireless communication system of technology, Long Term Evolution (LTE), Universal Terrestrial Radio Access Network (UTRAN) and global intercommunication microwave access (WiMAX) based on global system for mobile communications (GSM).

A plurality of wireless and/or wired communication systems can interconnect and think that radio communication provides E2E QoS.In some implementations, core network 125,127 can use different patterns between different wireless and/or wired communication systems, to transmit data.

Fig. 2 shows the instance of radio station's framework.The various instances of radio station comprise base station and wireless device.Radio station 205 can comprise that like base station or wireless device processor electronic equipment 210 is like microprocessor.Radio station 205 can comprise that transceiver electronic equipment 215 is to send and/or to receive wireless signal through one or more communication interfaces such as one or more antenna 220.Radio station 205 can comprise other communication interfaces that are used to transmit and receive data.In some implementations, radio station 205 can comprise one or more wired communication interfaces with wired network communication.Radio station 205 can comprise the one or more memories 255 that are configured to stored information such as data and/or instruction.In some implementations, processor electronic equipment 210 can comprise at least a portion of transceiver electronic equipment 215 and memory 255.

In some implementations, radio station 205 can communicate with one another based on the CDMA air interface.In some implementations, radio station 205 can communicate with one another based on OFDM (OFDM) air interface, and said OFDM (OFDM) air interface can comprise OFDM (OFDMA) air interface.In some implementations, radio station 205 can utilize one or more wireless technologys, and for example CDMA such as CDMA2000 1x, HRPD, WiMAX, LTE and Universal Mobile Telecommunications System (UMTS) communicate.

QoS on network to network interface

How two networks of network to network interface (NNI) definition interconnect and exchange message.Though the network domains of interconnection is each other outside and usually by different telecommunications company's operations, the network of this interconnection also can comprise independent interior fields.The service quality (QoS) of the IP network that this NNI connects with to the upper limit of end-to-end (E2E) packetization delay, to packet loss and block transmission delay change the upper limit and attribute such as the bandwidth profile of (shake), the professional availability requirement of classifying and in service-level agreement (SLA), defining is relevant.Distribute the ability of corresponding QoS assurance relevant with the ability of Differentiated Services classification (CoS) with in the telecommunications company territory of interconnection according to allocated bandwidth and traffic performance at the QoS on the NNI.

Some present networks realize that through depending on the big bandwidth of reservation QoS guarantees, and this method has caused low network capacity utilization.Utilize Internet resources very important better for the user experience that strengthens, even sufficient bandwidth resources are available for telecommunications company.Because increasing network moves towards the network architecture based on all-IP, the service supplier is constantly seeking the solution to the optimum network utilization of network interconnection and cost reduction.Therefore, the service quality of IP-based telecommunication service can be to the network-to-network important role that interconnected.

Telecommunications industry and normal structure (SDO) as third generation partner program (3GPP), TISPAN (telecommunications and internet converged services and senior networking protocol), GSM association (GSMA) after deliberation the QoS in network-to-network interconnection.

Most of SDO have defined NNI interface and relevant network element.Some SDO have also defined qos feature.Be the high level summaries of most of SDO below about the achievement of the QoS on the NNI.

GSMA：

GSMA has defined the framework framework of IP packet switching (IPX) based on GRX (GPRS roams exchange), like what in " Inter-Service ProviderIP Backbone Guidelines " (GSMA IR.34), put down in writing.Fig. 3 shows high-caliber IPX framework model, wherein shows the A of various network operator, B and C.

IPX allows various types of service suppliers---Mobile Network Operator (MNO), fixed network operator (FNO), Internet Service Provider (ISP) and ASP (ASP)---utilize local afterbody to be connected to obtain with the service supplier between being connected of IP backbone network (IPX).Can connect via layer 1 physical connection, the connection of layer 2 logic or a layer 3IP VPN through public ip network and realize local afterbody; Though it is not the selection of recommending that layer 3 connects.The service supplier can be connected to more than an IPX supplier.IPX is formed by the independent IPX supplier with competition.

The IPX interconnection supports three types connection to select: only transmission connects, and bilateral service switching is connected with polygon service maincenter.IPX supports end-to-end (E2E) service quality---the service supplier's borde gateway from service supplier's borde gateway of starting to terminating.IPX agent functionality in back two types connection is selected is convenient to IPX supplier and is guaranteed the E2E QoS to all classs of service according to service-level agreement.

In IPX, E2E QoS is established on the service type (CoS) and QoS profile of definition in the service-level agreement (SLA).Service regulation between SLA definition service supplier and the IPX supplier, and the service regulation between two IPX suppliers.Service availability, shake, packet loss and delay are the tolerance that is included in the QoS profile.Need support this QoS tolerance through the independent connection between service supplier and IPX supplier.This SLA also can expand to the entire I PX network of being made up of a plurality of IPX supplier.The borde gateway of service supplier and purpose service provider is the separation of the measurement/enforcement of the QoS profile that is used to discuss and decide in the source.In order to ensure E2E QoS, GSMA IR.34 recommends professional class of service and the DiffServ mark of service supplier shown in following table 1.6 DSCP mark indications belong to whenever slipping a line of each class of service and are (PHB), like what recommended in IETF RFC3246 and RFC2597 standard by the Internet engineering duty group (IETF).

Table 1: professional classification and DSCP mark

(forwarding of " EF "-quickening, " AF "-reliably transmits and " BE "-best effort)

The conversational class of service applies strict demand to the delay and jitter value.For the stream transmission class of service, require not as subscriber equipment data cached equally strictness before emitting usually.The interactive service classification requires RSVP to satisfy service request.For the backstage class of service, grouping dimension is bigger usually, though be not that delay and jitter is responsive.Packet loss is minimized to avoid repeating transmission and the extra duty on the network.The service supplier made marks to dividing into groups according to professional classifying rules before business being forwarded to IPX supplier.Queuing, packet transaction algorithm and the other technologies that can be used for DiffServ are the decisions of leaving IPX supplier for.This professional classification is based on the gathering of the user traffic flow that belongs to same classification.The business that belongs to a different category has been labeled DSCP and has been sent to IPX supplier, possibly be encapsulated in general routed encapsulation (GRE) tunnel.IPX supplier mark DSCP value again is used in themselves territory, carrying out route, as long as they return original DSCP mark in the exit point place in territory separately at it.

ETSI?TISPAN：

TISPAN IPX is a standard of ETSI (ETSI), and its IP backbone network that TISPAN definition is provided is to support the connection between the service supplier.Fig. 4 shows the instance of the TISPAN IPX framework of the instance that comprises indirect SoIx interconnection.

In TISPAN IPX framework not to the mandatory support of E2EQoS.TISPAN IPX is contained the interconnection of three kinds of GSMA IPX types, that is, only transmission connects, bilateral service switching, and polygon service maincenter connects.For E2E is provided QoS, can expand the scope of the fusion solution among the different SDO with this general character of GSMA IPX.

3GPP：

3GPP interconnects to IP between the operator that supports the IMS multimedia service through the research of Public Switched Telephone Network and Public Land Mobile Network (PLMN) and the right traditional voice and the specification requirement of Video service; (for example, VoIP) transmit (TR 22.893) through IP foundation structure in these services.This research is considered by other main bodys interconnected model of GSMA, ETSI and ITU-T definition for example.

Three kinds of interconnect schemes of 3GPP TR 22.893 identifications: directly connect between operator, the indirect connection is connected to the third party with operator between operator.Connecting imagination between operator indirectly connects via telecommunications company in the middle of the IP interconnection such as the IP of IPX between the service supplier.It is the special circumstances of indirect connectivity scenario that operator connects to the third party, and uses interconnection to support the interconnection of service supplier and application vendor like IPX.

3GPP TR 22.893IPX model interconnects through using agent functionality in the network of interconnection that focus is expanded to service-aware from the only transmission of GRX with connected mode.Rely on SLA to come to discern uniquely interconnection point.Intercommunicated differentiation excessively and tagged traffic classification are supported E2E QoS.Signaling and media services are processed according to their mark, so that guarantee enough E2E QoS.This is very consistent with the mode that is adopted by the GSMAIPX criterion among the IR.34.

ATIS：

Interconnection (NG-CI) working group of telecommunications company of future generation in ATIS has defined the qos requirement on multiple operating position and the NII to interconnect scheme, comprises the QoS mechanism that is used for VoIP, video conference, data and IPTV.There is the proposal about application scheme in notion based on as the IP agency network of third party's network in ATIS, so that the interconnection as two service suppliers of originators and terminating side to be provided.

IETF：

Ietf definition be used for through combining DiffServ and RSVP-TE to come solution for the QoS on the multiprotocol label switching (mpls) network assurance NNI, RSVP-TE is the resource reservation protocol (rsvp) of traffic engineered (TE).DiffServ distinguishes the service type (CoS) of each grouping, distributes priority and guarantees preferential in the grouping of transmitting higher Priority Service.Yet DiffServ can not arrange the bandwidth of different service types.Just in case the professional available bandwidth that surpasses, DiffServ can be that cost guarantees the preferential of higher Priority Service with lower Priority Service.Under extreme case, higher Priority Service is not immune to time delay and packet loss.Therefore, like what IP network was defined, only the DiffServ technology does not guarantee E2E QoS and service-level agreement.

The RSVP-TE agreement reserved resource of ietf definition is not congested to guarantee routed path, and therefore guarantees the bandwidth resources of defined service type.RSVP-TE does not serve recognition capability.In case the business in the MPLS tunnel surpasses the service rate of being reserved, the responsive service of QoS just is affected.Therefore, only RSVP-TE can not solve E2E QoS and guarantee problem.

Make the MPLS IP core network can distinguish CoS in conjunction with DiffServ and RSVP-TE technology, guarantee based on the forwarding of the resource reservation of CoS and Geng Gao priority business preferential.Therefore, can guarantee E2E QoS and the service-level agreement on NNI for core network in conjunction with DiffServ and RSVP-TE technology based on MPLS.Fig. 5 shows the instance of PSTN telecommunications company and PLMN telecommunications company interconnection on NNI.In this example, PSTN telecommunications company and PLMN telecommunications company are through telecommunications company (IPX telecommunications company) interconnection in the middle of the IP interconnection, and telecommunications company is a complete IP network in the middle of the said IP interconnection.PSTN telecommunications company and PLMN telecommunications company all have the suitable SLA with IPX telecommunications company respectively, but between PSTN telecommunications company and PLMN telecommunications company, do not have direct SLA.IPX telecommunications company provides only transmission service, and wherein IPX is delivered to another telecommunications company from telecommunications company's branch journey simply with IP operation.In addition, IPX converts the TMD business to IP operation, as needed before transmitting it in minute journey.Conversation initialized protocol (SIP) is in particular IP network 1999 (RFC 2543) by IETF (the Internet engineering duty group) and is defined as the application layer signaling protocol; With foundation, modification and end and one or more participants' IP-based session, for example Internet Protocol telephone, multimedia are distributed and multimedia conferencing.IPX supports different SIP profiles, and between the SIP profile, conversion/interoperability is provided.

When PLMN user ends at the PSTN user calling and when vice versa, IPX telecommunications company provides Differentiated Services based on DiffServ to guarantee E2E QoS.The policy information in SLA that IPX in IPX telecommunications company territory agency has PSTN and PLMN telecommunications company based on it through NNI provides time, blacklist inspection, code conversion and the SIP and the ISUP that serve route on daytime for example to change.

Fig. 6 shows and is used to the instance that telecommunications company inserts the IPX framework that guarantees the E2E QoS on NNI.The X of telecommunications company is the home services supplier of user A.User A orders family broadband and advanced video service from the X of telecommunications company.The X of telecommunications company trustship movie/video Download Server or subscribe to this service from some third party content providers---but it is transparent to the user.The order of user A allows him to obtain this high-level service, also in the X affiliate of telecommunications company network, roams simultaneously.The Y of telecommunications company is such roaming partner of the X of telecommunications company.For the purpose of discussing, suppose that the Y of telecommunications company is the WLAN service supplier who has focus in the whole nation.The focus of X of telecommunications company and the Y of telecommunications company is all signatory with IPX X clearinghouse, to realize the seamless service experience to the X user of telecommunications company.The X of telecommunications company is connected with IPX X clearinghouse through IPX NNI interconnection with the Y of telecommunications company.X of telecommunications company and the Y of telecommunications company have the suitable SLA with IPX X, are used for the guaranteed qos to the user.

User A is away from home and obtains the Internet connection of its notebook computer equipment through the Y WLAN of the telecommunications company hot spot networks in the cafe.User A wants to watch the physical culture montage through the video entry of the family that signs in to him (X of telecommunications company) (through SIP signaling etc.).The senior subscription status of the X of telecommunications company identification user A, and call SLA with IPX X clearinghouse to realize high bandwidth stream transmission service through the DiffServ classification mark (for example, the DiffServ mark of AF4x) of user A media packet streams.The SLA of IPX X clearinghouse foundation and the X of telecommunications company cashes the DiffServ mark about the media stream packet of user A at its gateway place, entrance boundary.Yet in current IPX example, nothing can guarantee that this senior QoS service is at the media stream packet E2E that will be ensured to user A through the Y of telecommunications company network when connecting.

QoS technology on the NNI that in presents, describes can be implemented the ability of the E2E QoS in the NNI interconnection of giving security.This implementation allows to reserve the suitable bandwidth and other resources in the IPX X territory, is connected simultaneously in the Y of the telecommunications company network so that user A can receive the service of high-throughput Media Stream.

The QoS mechanism of in presents, describing is used to provide the assurance to this E2EQoS in the NNI interconnection.In some implementations, said mechanism can comprise NNI signaling between the territory of the resource that is used for reserving the IPX territory and be used to implement domain signaling in the IPX of QoS E2E.

Fig. 7 shows the instance that inserts the IPX framework that is provided at the E2E QoS on the NNI for many equipment, and wherein the user orders family broadband and advanced video service from the supplier of family A.Supplier A is that fixing moving is merged (FMC) supplier, and inserts the service that provides through landline and WiMAX.The user can be through having variation many device access services of media capability.For example, the user has high resolution multimedia equipment (for example, HDTV) and low-resolution video equipment (for example, wireless device).The supplier of family A is directed to the user with content from a plurality of content providers.Shown in instance in, ASP A provides the ASP of IPTV video content.The supplier of family A keeps being connected through IPX clearinghouse with ASPA.The supplier of family A and ASPA keep with the SLA of IPX clearinghouse with to user's guaranteed qos.

In the scheme under considering, the user watches IPTV through his wireless device at first.When the user uses Session Initiation Protocol when his wireless device is initiated the IPTV session, the supplier of family A and ASPA discern the access device ability, and definite subscriber equipment is only supported the low resolution media stream.ASP A is according to the capability code of being discerned and modulation Media Stream of consumer wireless device.Suppose to exist and make supplier A or ASP A transmit bandwidth requirement and traffic performance media flow transmission is arrived user's solution to IPX X.Suppose that also existence makes IPX X communicate by letter with its edge routing function (borde gateway) and flows the ability that on IPX X territory, is transmitted with agreed bandwidth and the traffic performance while user media of implementing user oriented Media Stream.

Next, the user switches to high resolution multimedia equipment.The supplier of family A and ASP A discern the access device ability of high resolution multimedia equipment once more.ASP A encodes according to the high resolution multimedia ability of subscriber equipment and modulates Media Stream now.Suppose to exist supplier A or ASP A are required high-resolution media is spread the solution that is passed to the user to the bandwidth of IPX X transmission increase and the traffic performance of enhancing.IPX X is delivered to its edge routing function (borde gateway) with the requirement of this enhancing again, is used for supervision and shaping at the user oriented Media Stream at the entrance in IPX X territory and exit point place.Under above situation, can guarantee the E2E QoS of user media stream, simultaneously media stream on IPX X territory.IPX X territory can comprise one or more IPX supplier, and this E2E QoS guarantees on so a plurality of IPX provider domain, to be provided.

The framework of E2E QoS on NNI

The industry momentum is set up around GSMA IPX.3GPP SA1 also is devoted to " research is to the identification of the senior requirement of the IP interconnection of service " (3GPP TR 29.893) and approval GSMA IPX.GSMA IPX proposes Differentiated Services through using the DiffServ technology.Yet owing to the proportional zoom problem that stream demonstrated by true number, it is a challenge that Differentiated Services is provided in I PX network.Cooperate therewith, IPX supplier need carry out professional ability of regulating on the stream that belongs to a different category.Although be defined in the solution of guaranteed qos in the internal services provider domain; For example the 3GPP strategy is controlled (PCC), ETSI TISPAN RACS Resource and Admission Control Sub-system (RACS) etc. with chargeing, and such solution is inappropriate for the E2E QoS in NNI interconnection between the territory.

This paper has proposed scalable IPX framework, and service-level agreement is used for handling Differentiated Services and guaranteeing the E2E QoS on the NNI with reliable mode with coordinated mode between the territory so that service supplier and IPX supplier can elaborate.The function element and the interface of this scalable IPX framework below at length are provided.

GSMA IPX utilizes DiffServ to be used for Flow-rate adjustment and supervises based on the static configuration realization of borde gateway (BG).This use of DiffServ possibly cause the undesirable under-supply or excessive supply of Internet resources.For the E2E Differentiated Services of supporting to guarantee, in an implementation, the scalable IPX framework that is proposed can be configured to allow the service supplier before business gets into the IPX provider network, stream of packets to be divided into different " class of service ".After this classification, stream of packets is assembled according to their class of service, and the stream of being assembled is directed on IPX network, to transmit.This gathering based on classification of stream is known as " main line ".

Service supplier and IPX supplier have SLA to support Differentiated Services.Correspondingly, the different supplier in IPX also has their SLA separately.There is not the details of research about the content of SLA; Can suppose that SLA can be elaborated comprises that a supplier offers the type of another supplier's Differentiated Services, and to being ready to accept and the upper limit of the business that each such " class of service " of transmitting is associated from another supplier with supplier.Can implement SLA based on the DiffServ mark on the professional main line of being assembled by the telecommunications company/supplier who receives.

As an instance, in some implementations, can be classified into main line based on classification from the export business of service supplier's borde gateway (BW)---for example best effort, priority, mission critical main line.This classification can be based on the particular requirement that is associated with main line, as the priority of bandwidth, to the upper limit, the shake that postpones guarantee, to the upper limit of packet loss etc.Like what supported by DiffServ, priority business can further be categorized into some classifications, like EF, FF, BE etc.If desired, according to classification based on the main line of class of service---the business of this gathering can be filled in the tunnel of GRE encapsulation, is used on the IPX provider network, transmitting.

Fig. 8 shows and guarantees E2E QoS and utilize DiffServ and the instance of the scalable IPX framework that is proposed of the signaling of RSVP-TE type.In the framework that is proposed, at least one service managerZ-HU (SM) function is provided as the QoS service managerZ-HU, and can be in trust with management and control QoS signal and operation in each provider domain.In the instance shown in Fig. 8, four SM functions are provided in service supplier A network domains, IPX A network domains, IPX B network domains and service supplier B network domains respectively.Each SM function all is configured in communication network separately, manage qos signaling through the network-to-network interconnection that connects different communication networks, and management QoS operation.

In four various network in Fig. 8, service supplier A network and IPX A network interconnect and direct communication each other.Similarly, IPX A network and IPX B network interconnect, and IPX B network and service supplier B network interconnect.The network that in Fig. 8, has three pairs of connections.Service supplier A network and IPX B network do not interconnect, and communicate through vehicular IPX B network.Similarly, service supplier A network and service supplier B network and service supplier B network and IPX A network do not interconnect.Service supplier A network and service supplier B network communicate through IPXA and IPX B network.

In Fig. 8, the communication network that borde gateway (BG) is provided to be connected with another in each communication network connects, and is used for signaling and data communication between the communication network of these two connections.For the communication network that is connected with two other communication networks, for example have and be designated as two borde gateways that are connected with said two other communication networks respectively with IPX A network that service supplier A network is connected with IPX B network.Each borde gateway is operated also implementing entity as the qos policy of implementing qos policy the gateway of other networks except conduct.

In the framework in Fig. 8, each IPX network territory comprises the IPX agency of SIP/SDP signal.The SM function of being acted on behalf of each IPX provider domain of trustship by the IPX in the IPX provider domain has been shown in the instance shown in this.This only is an instance, and other places that service managerZ-HU maybe be in the IPX provider domain are in trust.For example, this service managerZ-HU function also can be in trust in service provider (SP) territory that connects.SM providing capability in the IPX territory, for example bandwidth broker (BB) and Policy Decision Point (PDP).In some implementations, BB and PDP ability can be integrated in the SM, or can be in trust in other outside place of the SM in the IPX provider domain separately.For the QoS in the NNI interconnection, the SM in service provider domain can not need the BB function.Bandwidth broker can be the Internet resources and tactful centralized admittance controlled entity in each territory of management.BB can have the observability of all-network resource, and the junctor level load condition that is included in the territory separately determines to promote efficient resource allocation and route.PDP can have the configured strategy information statically based on SL A, and such information can dispose and upgrades through Network Management Function.In some implementations, can dynamically upgrade this policy information through signaling between SM.

Fig. 9 shows the instance of the E2E QoS assurance call flow of the IPX framework among Fig. 8.In this example, the user in service supplier A (SP-A) territory communicates through the user in SIP signaling and service supplier B (SP-B) territory.When completing successfully the SIP signaling, in lower floor's transmission network, provide the VoIP Media Stream E2E between the user separately in SP-A territory and SP-B territory of accommodating control function successfully to guarantee E2E QoS to Media Stream.For the transmission to Media Stream guarantees this E2E QoS, SP-A is connected with IPX-B with the IPX-A that interconnects with the NNI of SP-A and SP-B is provided respectively through IPX network with SP-B.Borde gateway (BG) through in the edge in each territory is provided at the transfer function in the interconnect interface.By each the hosted sevvice management device in SP-A territory, IPX-A territory, IPX-B territory and the SP-B territory.SM has the knowledge and the information of the QoS parts of SLA, comprises trunk bandwidth restriction based on classification etc.SM in service provider domain also has the knowledge of the bandwidth requirement of the export business that belongs to the different classes main line and information.

The SM operation signals the information about policing rule with cascade system E2E to the SP of interconnection and the SM in the IPX provider domain.This signaling comprises according to the specific semanteme of agreement and defines and use agreed sentence structure to be sent to the resource requirement of the SM of connection.Resource requirement with to the bandwidth requirement of different classes main line, guarantee in the traffic performance aspect the upper limit that postpones, shake, relevant to the upper limit of packet loss etc., and other information can be supported by SLA.As shown in, the SM that " policing rule renewal " NNI signaling is used on policing rule communicates by letter to SM.

Above SM can be according to sentence structure and the semantic RFC3209 RSVP-TE signaling that suitable modification is arranged to the instance of SM signaling.Can be by corresponding SDO definition RSVP-TE expansion and target.Except RSVP-TE, SDO also can define the agreement of this policing rule renewal NNI signaling between the SM.Based on the dynamic property that belongs to like the bandwidth requirement of the different business classification main line signaled by upper reaches SM; The SM of the reception in the IPX territory communicates by letter with its BB, and this carries out and admits control before bearing this business of transmission, in its territory separately, to reserve suitable bandwidth and other resources.For example; If SP-A wants to make " the P1 class " through the business of IPX and SP-B exchange to double, specific policing rule upgrades the NNI signaling and guarantees to be allowed to make this " the P1 class " that gets into the business of IPX-A through NNI to reserve required bandwidth and other resources E2E before doubling at SP-A from the SP-A signaling to IPX-A and from SP-A to IPX-B with from IPX-B to the agreement of SP-B cascade.

Use borde gateway (BG) to be implemented in the agreed strategy decision at SM place through QoS rule predetermining signaling in the territory.BG is that strategy is implemented entity (PEP).This signaling comprises the QoS request that defines and use agreed QoS sentence structure between SM and BG, to transmit according to the specific QoS semanteme of agreement.The instance of this signaling is included in sentence structure and ability to has IETF RSVP, RSVP-TE, 3GPP PCC, ETSI TISPAN RACS of suitable modification etc.

In the IPX provider domain, SM communicates by letter with the BG that is arranged on its network edge place.Supervision through BG is implemented to be used to guarantee that the business from provider domain flows out meets agreed traffic performance and capacity with strategy.The simplified example of this mechanism will be the token bucket system that on every main line basis, realizes.Similarly, the import supplier who receives professional main line need guarantee that the business that is received meets SLA.

As shown in Figure 9, SM through use " QoS rule predetermining " signaling with its separately the BG of the edge in territory communicate by letter.When the reception indication is asked (PR-R) NNI message from the policing rule renewal of resource reservation (RR) request of equity-SM; The BB inspection that SM in the IPX territory uses it is in its availability of the resource in the territory separately; And if resource is available, then SM gave PR-R is forwarded to the next SM in cascade chain towards purpose SP before and is used for reserved resource and is making marks.SM-BB communication can be via SNMP or another suitable agreement in the territory.If admit the control decision negates that then the answer of failure is sent to the SM that starts.In case required resource is available E2E, the policing rule that returns of message upgrades the actual reservation that answer (PR-A) chain can be used for resource.Other possible methods are included in the actual reservation that one group of independent signaling of use between the SM is used for resource.

The supervision at BG place and strategy implement to comprise SM use " QoS rule predetermining " agreement with the QoS rule with implement decision and be passed to their BG separately.Business norms in QoS rule predetermining signaling have been described the characteristic based on the main line of classification.This " policing rule renewal " and " QoS rule predetermining " signaling between the form and function entity have been shown in Fig. 9.

In some implementations, the E2E QoS on the NNI in the IPX framework can be based on following element: at the service-level agreement (SLA) between the territory of interconnection, based on the DiffServ mark on professional main line of agreed criteria for classification, be used for the territory of cascade system E2E exchanging policy and resource requirement between SM-SM NNI signaling, can be through SNMP or another suitable agreement the territory of admittance control and resource allocation in SM-BB communicate by letter and is used for based on SM-BG signaling in the territory of agreed tactful and DiffServ mark implementation strategy on professional main line.

Be used for realizing first embodiment of E2E QoS on the NNI solution

As an instance, the user that makes who refers back in Fig. 7 orders the scheme of family broadband and advanced video service from the supplier of FMC family A.Suppose to exist to be used for guaranteeing the solution that E2EQoS guarantees, no matter which subscriber equipment is used for access services to the user.Call flow in Figure 10 shows the illustrative methods that is implemented in the QoS on the NNI based on Fig. 8 and Fig. 9.This concrete grammar is kept the SLA with the IPX X of IPX clearinghouse based on the supplier of family A and ASP A.Code to signaling message in Figure 10 is the SIP state code that in IPX, uses.

Call flow explicit user in Figure 10 is watched IPTV through the low resolution wireless device at first.The supplier of family A and ASPA identification access device ability.ASPA encodes to Media Stream according to the low resolution ability of consumer wireless device.Supplier A also takes action according to bandwidth requirement and traffic performance etc. and through ' policing rule renewal ' request (PR-request) NNI signaling UE capability is signaled the clearinghouse to IPX X.The SM-SM signaling is used for the distribution and the reservation of the resource in IPX X territory between the service managerZ-HU in supplier A, IPX X and ASPA (SM) function executing territory.The SM-BG signaling is used at the borde gateway place enforcement E2E qos requirement in SM in the IPX X territory execution territory then.Completing successfully when being used to set up the SIP signaling of IPTV session, the Media Stream that ASP A will suitably encode with the DiffServ mark sends to the user through the IPXX of clearinghouse.Guarantee the E2E QoS of this Media Stream by means of the enforcement of the SLA between RSVP and telecommunications company.

The user for example inserts through landline and switches to high-resolution equipment then.The supplier of family A and ASP A discern the customer access equipment ability once more.ASP A encodes to Media Stream according to the capable of high resolution of subscriber household equipment.Supplier A takes action once more according to bandwidth requirement that strengthens and traffic performance etc. and through ' policing rule renewal ' request (PR-request) NNI signaling UE capability is signaled the IPX X to clearinghouse.The SM-SM signaling is used for the distribution and the reservation of the resource in IPX X territory between the service managerZ-HU in supplier A, IPX X and ASPA (SM) execution territory.The SM-BG signaling is used for the E2E qos requirement that enforcement strengthens at the borde gateway place in SM in the IPX X territory execution territory then.When completing successfully the SIP signaling, ASP A will suitably encode and the Media Stream of DiffServ mark sends to the user through the IPX X of clearinghouse.Come to guarantee once more the E2E QoS of this Media Stream by means of the enforcement of the SLA between RSVP and telecommunications company.

Figure 10 shows the session of the multimedia service that is used for the QoS assurance and is connected the example call flow of setting up.Particularly, Figure 10 shows and inserts the instance that guarantees the call flow that the E2E QoS on NNI is associated for many equipment.In this example, user (caller) is through the low resolution IPTV session of SIP:INVITE request call and ASP A IPTV server (callee).Middle sip agent transmits sip message E2E between caller and callee.In the INVITE of being created by the caller, source body comprises the information about the characteristic of caller's equipment.This information comprises Session Description Protocol (SDP) content about media processing capacity, qos requirement, fail safe etc.When receiving INVITE, the callee analyzes SDP information and checks a medium of asking and supporting, qos requirement etc.The callee sends to the caller with response message (for example, 183 session response) then.Can use at this callee (ASP) designated user with INVITE in the corresponding service of request, medium type and QoS.When receiving 183 message, if the caller can comply with callee's proposal, then the caller sends to the callee as the response to 183 message with PRACK (Temporary Response affirmation) message.If can not, then the caller sets up failure to callee's announcement session.The callee receives PRACK and responds with 200 OK message.

With PRACK is sent to the callee concurrently, service managerZ-HU (SM) in supplier A territory uses the SM in clearinghouse IPX X territory to initiate the NNI signaling, is used for bandwidth reserved and other resources E2E towards ASP A territory.SM in supplier A territory through with territory at it in the interaction of sip agent receive the information that requires about agreed medium to this calling.This sip agent and SM function can be arranged or be placed in the territory separately Anywhere.The sentence structure and the semanteme that are used for the agreement of interior sip agent of provider domain and the communication between the SM can be proprietary or standardized.Policing rule between the SM in supplier A, IPX X and ASP A territory upgrades distribution and the reservation that request NNI signaling causes the resource E2E of the every SLA between such territory.SM in the IPX territory utilizes borde gateway to carry out that SM-BG QoS rule predetermining signaling is used to implement the E2E qos requirement in the territory then.

Accomplish RSVP with implement relevant signaling after, caller and callee exchange remaining sip message (UPDATE (renewal), ring, 200 OK, ACK (affirmation)), so the IPTV session can further be carried out.Can use the QoS E2E of assurance the low resolution real-time media stream to be provided to consumer wireless device.

After a while, when the user switches to high resolution multimedia equipment, similar SIP: signal between user (caller) and ASP A IPTV service (callee) and take place.High resolution multimedia requires to be reached an agreement by exchange and between caller and callee, and the callee sends to the caller with the response of 183 session.ASP (callee) designated user can use with INVITE in corresponding high-resolution media type of such request and QoS.When receiving 183 message, if the caller can comply with callee's proposal, then the caller sends to the callee as the response to 183 message with PRACK message.If can not, then the caller sets up failure to callee's announcement session.The callee receives PRACK and responds with 200 OK message.

With PRACK is sent to the callee concurrently, service managerZ-HU (SM) in supplier A territory uses the SM in IPX X territory to initiate the NNI signaling, is used for reserving towards ASP A territory the bandwidth and other resources E2E that increases.SM in supplier A territory through with corresponding field at it in the interaction of sip agent function receive the information that requires about agreed high-resolution media to this calling.Policing rule between the SM in supplier A, IPX X and ASP A territory upgrades request NNI signaling to be caused in distribution and the reservation of the high bandwidth resource E2E of the every SLA between the territory like this.SM in the IPX territory utilizes borde gateway to carry out that SM-BG QoS rule predetermining signaling is used to implement the E2E qos requirement in the territory then.

Accomplish the high bandwidth resource reservation with implement relevant signaling after, caller and callee exchange remaining sip message (UPDATE (renewal), ring, 200 OK, ACK (affirmation)), so the IPTV session can further be carried out.Can use the QoS E2E of assurance the high-resolution real-time media stream to be provided now to consumer wireless device.

Be used for the NNI solution is realized second embodiment of E2E QoS

Figure 11 shows the call flow based on another method that makes the QoS on NNI of user from the scheme of the supplier of FMC family A order family broadband and advanced video service in Fig. 7 of Fig. 8 and Fig. 9.This method is kept the SLA with the IPX X of IPX clearinghouse based on the supplier of family A and ASP A.

Call flow explicit user in Figure 11 is watched IPTV through the low resolution wireless device at first.The supplier of family A and ASPA identification access device ability.ASPA encodes to Media Stream according to the low resolution ability of consumer wireless device.

Supplier A writes down UE capability according to low resolution bandwidth and traffic performance etc., and this UE capability is categorized in SLA one in ' based on the main line of classification ' on the NNI that consults with IPX-X.Supplier A aggregate users equipment low resolution bandwidth and qos requirement, customer service are given the main line based on classification by reservation/allotment.

If to based on the business need of the gathering that is produced of the main line of classification in the trunk traffic restriction of consulting based on classification; Completing successfully when being used to set up the SIP signaling of IPTV session, the Media Stream that ASP A continues will suitably encode with the DiffServ mark sends to the user through the IPX X of clearinghouse.

Yet; If the business need to based on the gathering that is produced of the main line of classification surpasses the trunk traffic restriction of consulting based on classification, then supplier A takes action and will ask (PR-request) NNI signaling to signal the clearinghouse to IPX X through ' policing rule renewal ' to the business need based on the increase of the main line of classification.The SM-SM signaling is used for distributing and reserved resource to the main line based on classification in IPX X territory between service managerZ-HU (SM) the function executing territory in supplier A, IPX X and ASP A.The SM-BG signaling is used at the borde gateway place enforcement E2E qos requirement in SM in the IPX X territory execution territory then.Completing successfully when being used to set up the SIP signaling of IPTV session, the Media Stream that ASP A will suitably encode with the DiffServ mark sends to the user through the IPX X of clearinghouse.Enforcement by means of the SLA between RSVP and telecommunications company guarantees the E2E QoS to this Media Stream.

The user inserts through landline and switches to high-resolution equipment then.The supplier of family A and ASP A discern the customer access equipment ability once more.ASP A encodes to Media Stream according to the capable of high resolution of subscriber household equipment.

Supplier A writes down UE capability according to the bandwidth that increases and traffic performance etc. once more, and with this UE capability be categorized in SLA with the NNI of IPX-X negotiation on ' main line based on classification of enhancing ' in one.Bandwidth and qos requirement that supplier A aggregate users equipment increases, customer service are given the main line based on classification that strengthens by reservation/allotment.

If to strengthen based on the business need of the gathering that is produced of the main line of classification in the trunk traffic restriction of consulting based on classification; Completing successfully when being used to set up the SIP signaling of IPTV session, the Media Stream that ASPA continues will suitably encode with the DiffServ mark sends to the user through the IPX X of clearinghouse.

Yet; If the business need based on the gathering that is produced of the main line of classification to strengthening surpasses the trunk traffic restriction of consulting based on classification, then supplier A takes action and will ask (PR-request) NNI signaling to signal the clearinghouse to IPX X through ' policing rule renewal ' to the business need based on the increase of the main line of classification.The SM-SM signaling is used for distributing and reserved resource to the main line based on classification in IPX X territory between service managerZ-HU (SM) the function executing territory in supplier A, IPX X and ASP A.The SM-BG signaling is used at the borde gateway place enforcement E2E qos requirement in SM in the IPX X territory execution territory then.Completing successfully when being used to set up the SIP signaling of IPTV session, the Media Stream that ASPA will suitably encode with the DiffServ mark sends to the user through the IPX X of clearinghouse.Enforcement by means of the SLA between RSVP and telecommunications company guarantees the E2E QoS to this Media Stream.

Figure 11 shows the session of the multimedia service that is used for the QoS assurance and is connected the instance of the call flow of setting up.Particularly, Figure 11 shows and inserts the instance that guarantees the call flow that the E2E QoS on NNI is associated for many equipment.In this example, user (caller) is through the low resolution IPTV session of SIP:INVITE request call and ASP A IPTV server (callee).Middle sip agent transmits sip message E2E between caller and callee.In the INVITE of being created by the caller, source body comprises the information about the characteristic of caller's equipment.This information comprises the SDP content about media processing capacity, qos requirement, fail safe etc.When receiving INVITE, the callee analyzes SDP information and checks a medium of asking and supporting, qos requirement etc.The callee sends to the caller with response message (for example, 183 session response) then.Can use at this callee (ASP) designated user with INVITE in the corresponding service of request, medium type and QoS.When receiving 183 message, if the caller can comply with callee's proposal, then the caller sends to the callee as the response to 183 message with PRACK (Temporary Response affirmation) message.If can not, then the caller sets up failure to callee's announcement session.The callee receives PRACK and responds with 200 OK message.

If desired; Owing to surpass to business need based on the gathering of the main line of low resolution classification; With PRACK is sent to the callee concurrently; Service managerZ-HU (SM) in supplier A territory can use the SM in clearinghouse IPX X territory to initiate the NNI signaling, is used for reserving towards ASP A territory more E2E bandwidth and based on other resources of the main line of classification.SM in supplier A territory through with territory at it in the interaction of sip agent receive about to this information that requires based on the agreed medium of the main line of classification.This sip agent and SM function can be arranged or be placed in the territory separately Anywhere.The sentence structure and the semanteme that are used for the agreement of interior sip agent of provider domain and the communication between the SM can be proprietary or standardized.Policing rule between the SM in supplier A, IPX X and ASP A territory upgrades distribution and the reservation based on more resource E2E of the main line of classification that request NNI signaling causes the every SLA between such territory.SM in the IPX territory utilizes borde gateway to carry out that SM-BGQoS rule predetermining signaling is used to implement the E2E qos requirement in the territory then.

Accomplish RSVP with implement relevant signaling after, if desired, caller and callee exchange remaining sip message (UPDATE (renewal), ring, 200 OK, ACK (affirmation)), so the IPTV session can further be carried out.Can use the QoS E2E of assurance the low resolution real-time media stream to be provided now to consumer wireless device.

After a while, when the user switches to high resolution multimedia equipment, similar SIP: signal between user (caller) and ASP A IPTV server (callee) and take place.High resolution multimedia requires to be reached an agreement by exchange and between caller and callee, and the callee sends to the caller with the response of 183 session.ASP (callee) designated user can use with INVITE in corresponding high-resolution media type of such request and QoS.When receiving 183 message, if the caller can comply with callee's proposal, then the caller sends to the callee as the response to 183 message with PRACK message.If can not, then the caller sets up failure to callee's announcement session.The callee receives PRACK and responds with 200 OK message.

If desired; Owing to surpass business need based on the gathering of the main line of classification to strengthening; With PRACK is sent to the callee concurrently; Service managerZ-HU (SM) in supplier A territory can use the SM in clearinghouse IPX X territory to initiate the NNI signaling, is used for reserving towards ASP A territory other resources based on the main line of classification of more E2E bandwidth and enhancing.SM in supplier A territory through with territory at it in the interaction of sip proxy server receive the information that requires about to the agreed medium that strengthen based on the main line of classification.This sip agent and SM function can be arranged or be placed in the territory separately Anywhere.The sentence structure and the semanteme that are used for the agreement of interior sip agent of provider domain and the communication between the SM can be proprietary or standardized.Policing rule between the SM in supplier A, IPX X and ASP A territory upgrades distribution and the reservation based on the more resources E2E of the main line of classification that request NNI signaling causes the enhancing of the every SLA between such territory.SM in the IPX territory utilizes borde gateway to carry out that SM-BG QoS rule predetermining signaling is used to implement the E2E qos requirement in the territory then.

Additional embodiment

A plurality of wireless or wired communication systems can provide end-to-end (E2E) QoS.In some implementations, wireless or wired communication system can use a kind of mechanism to operate IPX so that service awareness information is sent to another telecommunications company from a telecommunications company.Service awareness information can comprise that the service supplier requires like QoS, fail safe and charging.For example, wireless communication system can be operated between telecommunications company the IP interconnection with the exchanging policy rule.The IP interconnection can be based in a plurality of patterns between telecommunications company; (1) transmission mode for example; Wherein the IP interconnection is delivered to another telecommunications company with IP operation from telecommunications company's branch journey, and (2) service Transfer Mode is wherein except minute journey is transmitted IP operation; IP interconnection telecommunications company (IPX) has ' service awareness ' and can correspondingly manage business; (3) maincenter pattern, wherein IP interconnection telecommunications company passes to a plurality of service suppliers with IP operation branch journey, and ' service awareness ' be provided.In some embodiments, IPX can provide ' IPX agency ' function.The IPX agency can comprise the sip agent ability.

Wireless or wired communication system can send and transmit voice-and-data based on service-level agreement (SLA).In some implementations, service supplier and IPX telecommunications company can have one or more SLA.Correspondingly, the different telecommunications company in IPX can have SLA.SLA can comprise policy information, for example to/handle from the expection of each other the business that belongs to a different category.

The service supplier can be categorized into different classes with export business, like best effort, priority, mission critical etc.This classification can be based on the priority to traffic performance such as bandwidth, delay, jitter toleration, packet loss sensitiveness etc.Like what provided by DiffServ, priority business can further be categorized into some classifications, like EF, FF etc.

In some implementations, the business classification of more than describing can be based on the gathering of the stream from service supplier's exit point to IPX---and be not the basis with the individual calling.Based on this classification, can create SLA to implement the expection processing through receiving telecommunications company based on the Diffserv mark to different ' classification '.

In some implementations, IPX can support multiprotocol label switching (mpls).The MPLS framework can be supported in the traffic transmission in the IPX network.

Some implementations can be used the RFC 3209 RSVP-TE signalings between the different route/transfer entity in service supplier and IPX network.Exchange---the request and clear and definite route (Explicit Route) object among MPLS LSP, and business transferring characteristic/classification information E2E of RSVP-TE signaling regulation label, thus guarantee that the E2E bandwidth satisfies professional ' classification ' requirement.Carry ' classification ' requirement through the Diffserv/CoS mark.

Some implementations can be used the Diffserv of IPX and can utilize the ability that is provided by RFC 3209 RSVP-TE.In some implementations, the IPX agency can trustship ' service/business/policy manager ' function.Service managerZ-HU (SM) also can be by service supplier (SP) network (it is connected with IPX/interconnects) trustship.SM be policy manager and with the interconnection the SP/IPX carrier network in SM communicate by letter.RSVP-TE type signaling can be used between SM with end-to-end ground of cascade system exchanging policy information, business information, traffic performance etc.Can notice, can be similar to the information among the SLA between the telecommunications company of interconnection at the policy information that exchanges between the SM etc.Based on the dynamic property of the business that belongs to different ' classifications ', SM can be before resource/bandwidth E2E being allocated reserved resource/bandwidth E2E to the service of some classification.For example; If SP-S wants to make ' the P-1 class ' through the business of IPX-X and SP-D exchange to double suddenly, then from SM-S to SM-X and then the RSVP-TE type signaling from SM-X to the SM-D cascade will be guaranteed to be allowed to make this P-1 business that gets into IPX-X to reserve required bandwidth E2E before doubling at SP-S.

In some implementations, in particular network, SM can communicate by letter with the boundary function (BF) of the edge that is arranged on its network.BF is that strategy is implemented entity.SM uses the agreement or another agreed agreement and the BF that are similar to RSVP-TE (derivative) to communicate in the edge of its network separately.When receiving the message of resource reservation (RR) request of indication from reciprocity SM; The availability of the resource of SM inspection in its network separately, and possibly resource reservation (RR) request is forwarded to the next SM in cascade chain towards purpose SP before, make marks to being used for reserved resource.In case required resource is available E2E, the RR-that returns of message replys the actual reservation that chain just can be used for resource.

It is also conceivable that other implementation, for example between SM, use one group of independent signaling to be used for the actual reservation of resource.Actual resource reservation uses agreed agreement and signaling with QoS rule and the SM that implements to determine to be delivered to their BF separately with implementing to comprise.

In some implementations, the business that exchanges through NNI is the Diffserv mark.Be based on strategy that the Diffserv mark on the aggregate of the business that belongs to separately ' classification ' implements to discuss and decide and regular by the BF entity.In some implementations, can carry out exchange of E2E strategy and resource reservation through the SM-SM signaling.Can be implemented in based on the E2E QoS on the aggregate of the class of service of Diffserv mark through the SM-BF signaling.A solution can comprise SLA, the Diffserv mark on the class of service aggregate, SM-SM signaling and SM-BF signaling.

The disclosed execution mode of in presents, describing and other execution mode and feature operation can be in Fundamental Digital Circuits or at computer software, firmware or hardware---and be included in the presents and realize in the disclosed structure and their structural equivalents or in their one or more combination.Disclosed execution mode and other execution mode may be implemented as one or more computer programs; That is being used for of, on the computer read-only medium, encoding carried out or one or more modules of the computer program instructions of the operation of control data processing unit by data processing equipment.The computer read-only medium can be machine readable storage device, machine readable storage substrate, memory device, influence composition or their one or more combination of the material of machine readable transmitting signal.Term " data processing equipment " comprises all devices, equipment and the machine that is used for deal with data, comprises programmable processor, computer, or a plurality of processors or computer as an example.Device can also comprise the code of the execution environment of creating in question computer program except hardware, for example form the code of processor firmware, protocol stack, data base management system, operating system or their one or more combination.Transmitting signal is the artificial signal that generates, the signal of telecommunication, light signal or the electromagnetic signal that generate of machine for example, and it is generated so that the information coding is used to be delivered to suitable receiver apparatus.

Computer program (also being called as program, software, software application, script or code) can be write with any type of programming language; Comprise and explaining or compiler language; And can dispose in any form, comprise as a stand-alone program or as module, parts, subprogram or other being applicable to the unit that in computing environment, uses.Computer program not necessarily with file system in file corresponding.Program can be stored in (for example preserves other programs or data; In the part of file one or more scripts of in making language document, storing); Be stored in the single file that is exclusively used in question program; Or be stored in a plurality of coordinative files (for example, storing the file of the part of one or more modules, subprogram or code).Computer program can be deployed as on the computer be arranged in a website or be distributed in a plurality of websites and a plurality of computers through interconnection of telecommunication network on carry out.

Can carry out process and logic flow described in the presents by one or more programmable processors of carrying out one or more computer programs, with through operation input data with generate output and carry out function.Process and logic flow can also by dedicated logic circuit for example FPGA (field programmable gate array) or ASIC (application-specific integrated circuit (ASIC)) carry out, and device also may be implemented as dedicated logic circuit for example FPGA (field programmable gate array) or ASIC (application-specific integrated circuit (ASIC)).

The processor that is applicable to computer program comprises any one or a plurality of processor of the digital computer of general and special microprocessor and any kind as an example.Usually, processor will receive instruction and data from read-only memory or random access memory or both.The primary element of computer is the processor that is used to execute instruction and is used for store instruction and one or more memory devices of data.Usually, computer also will comprise be used to store data one or more mass-memory units for example disk, magneto optical disk or CD or operatively be coupled into from one or more mass-memory units of being used to store data for example disk, magneto optical disk or CD receive data or with transfer of data to these memory devices or carry out this two operations.Yet computer need not have this equipment.Computer-readable medium is suitable for storage computation machine program command and data, comprises nonvolatile memory, media and the memory device of form of ownership, comprises semiconductor memory apparatus as an example, for example EPROM, EEPROM and flash memory device; Disk, for example internal hard drive or removable dish; Magneto optical disk; And CD ROM and DVD-ROM dish.Processor and memory can be by supplemented, or are incorporated in the dedicated logic circuit.

Though presents comprises many details, these should not be interpreted as the restriction of the scope of the present invention that quilt is advocated or can be advocated, but as the description to the peculiar characteristic of specific implementations.Some characteristic of in presents, in the background of independent execution mode, describing also can combine single execution mode to realize.On the contrary, the various characteristics of in the background of single execution mode, describing also can realize in a plurality of execution modes individually or with any suitable son combination.In addition; Although characteristic preceding text can be described to some combinations and even at first by such opinion; One or more characteristics from the combination of being advocated can be deleted from combination in some cases, and the combination of being advocated can be pointed to the distortion of son combination or son combination.Similarly, though described operation in the accompanying drawings with particular order, this should not be understood that to require such operation to carry out or the operation shown in all is performed and realizes expected result with the particular order that illustrates or with consecutive order.

Some instances and implementation are only disclosed.Can carry out various variations, modification and enhancing to described instance and implementation and other implementation based on disclosed content.

Claims

1. method that service quality (QoS) is provided through different communication networks in block data communication comprises:

The QoS service managerZ-HU is provided respectively in different communication networks, manages qos signaling to be interconnected in the said different communication network through the network-to-network that connects said different communication network;

The said QoS service managerZ-HU of different communication networks of two connections of operation communicates with one another, so that each QoS service managerZ-HU can obtain to the QoS information of the service-level agreement (SLA) of the data communication services supported by said different communication network with about the information of the network service resource in corresponding communication network;

In each communication network, provide borde gateway to connect with the communication network that is connected with another; Be used for signaling and data communication between the communication network of said two connections, have if the communication network that wherein is connected with two other communication networks exists and designatedly respectively come and two borde gateways that said two other communication networks are connected;

Operate each QoS service managerZ-HU with the information of the one or more borde gateway transmission in corresponding communication network, comprise the said QoS information of said SLA and about the information of the network service resource of said data communication services about the qos policy of said data communication services; And

2. the method for claim 1 comprises:

A QoS service managerZ-HU that operates in the said different communication network sends to the 2nd QoS service managerZ-HU in the communication network of another connection with the request that will upgrade the QoS of said data communication services;

Operate in said the 2nd QoS service managerZ-HU in the communication network of said another connection, to obtain sending to a said QoS service managerZ-HU about the QoS updated information of being asked and with answer; And

Operate a said QoS service managerZ-HU to give the one or more corresponding borde gateway in corresponding communication network with said QoS update notification.

3. method as claimed in claim 2 comprises:

When the request that the QoS of said data communication services is upgraded comprises according to the condition that is not satisfied in the information at said the 2nd QoS service managerZ-HU place, operate in the message of said the 2nd QoS service managerZ-HU in the communication network of said another connection to comprise that in answer the said condition of indication is not satisfied.

4. method as claimed in claim 3 also comprises:

Operate said the 2nd QoS service managerZ-HU will another request that said QoS upgrades not sent to the communication network of said another connection.

5. method as claimed in claim 2 comprises:

When the request that the QoS of said data communication services is upgraded comprises the condition that is satisfied according to the information at said the 2nd QoS service managerZ-HU place; Operate in said the 2nd QoS service managerZ-HU in the communication network of said another connection will second request that said QoS upgrades being sent to the renewal of the 3rd QoS service managerZ-HU to obtain from said the 3rd QoS service managerZ-HU to be asked in the third communication network, said third communication network is connected with said second communication network and participates in said data communication services; And

After the renewal that obtains to be asked from said the 3rd QoS service managerZ-HU, operate said the 2nd QoS service managerZ-HU sending to a said QoS service managerZ-HU based on said answer from the renewal of being asked of said the 3rd QoS service managerZ-HU.

6. the method for claim 1 comprises:

Operate in the said QoS service managerZ-HU in the said different communication network of supporting said data communication services, the communication bandwidth of corresponding communication network is regulated in the requirement in the said service-level agreement (SLA) of said data communication services to be based on.

7. the method for claim 1, wherein:

One in the said different communication network is the wireless network that data, services is provided to wireless device.

8. the method for claim 1, wherein:

One in the said different communication network is the cable network that data, services is provided through one or more wire communication links.

9. the method for claim 1, wherein:

10. the method for claim 1, wherein:

Said different communication network comprises through one or more wire communication links to be provided the cable network of data, services and the wireless network of data, services is provided to wireless device.

11. a method that is used for wireless or wire communication comprises:

Think that at exchanging policy Rule Information between one or more networks the one or more connections between different service suppliers provide end-to-end quality of service.

12. method as claimed in claim 11 also comprises:

Policy rule information is delivered to network router implements one or more policing rules to control said network router.